E87.4: Mixed disorder of acid-base balance

Your blood acidity levels were altered.

There must be a certain acid content in our blood for our body to be able to function. The acid content is influenced by many processes. Among other things, the kidneys and lungs control the acid content in our body. If there are too many acids in the blood, these acids can then be converted into carbon dioxide. The carbon dioxide is then breathed out through the lungs. As a result, the acid content in the blood may be lowered. The kidneys affect the acid content in the blood. They may release excess acids into the urine if the acid content in the blood is too high. The kidneys may also release substances into the blood if the acid content in the blood is too low.

Your blood acidity levels were altered. In your case, that has several causes. The kidneys or liver may no longer work properly. It is also possible that you have lost many acids. That can occur for instance due to severe vomiting.

Additional indicator

On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body.

  • G: Confirmed diagnosis
  • V: Tentative diagnosis
  • Z: Condition after
  • A: Excluded diagnosis
  • L: Left
  • R: Right
  • B: Both sides

Further information


This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.
Your doctor will assist you with any health-related questions and explain the ICD diagnosis code to you in a direct consultation if necessary.


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